Respiratory ventilator



1.1 is a perspective view of a respiratory ventilator showing our design;

1.2 is a front elevational view thereof;

1.3 is a rear elevational view thereof;

1.4 is a left side elevational view thereof;

1.5 is a right side elevation view thereof;

1.6 is a top plan view thereof; and

1.7 is a bottom plan view thereof.

The broken lines in the drawings illustrate portions of the respiratory ventilator that form no part of the claimed design. 

CLAIM The ornamental design for a respiratory ventilator, as shown and described. 